Hi all, I have this problem :(adsbygoogle = window.adsbygoogle || []).push({});

A coin is dipped to the bottom of a water filled container made of an opaque material. Observed from the water surface, the depth of the coin appears to be 2 meters. Find the real depth ( R.I. of water = 1.33 )

Since angles are not given, how do I apply snell's law here ? I would normally find the tangent values of angles of incidence and refraction but as angles are not given, I cannot derive the real depth that way. Sines are not helping here. See attached diagram for reference ( MSPaint work, so might be bad ) - snell's law allows me to find the ratio of CD and BD. After that, I can't do anything.

[PLAIN]http://img638.imageshack.us/img638/4082/38043092.png [Broken]

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# Homework Help: Real and apparent depth

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